Barrier Free Living modular threshold ramp kit systems are available in 30″ widths and for heights up to 6″. They can be quickly and easily assemble, and can be re-used in other locations. The ramps have an anti skid surface and are self draining. The ramps fit any door opening and threshold and can be sized to fit using a knife or saw. Excellent Systems can be used all year long and in any type of weather. They can withstand temperatures from -40F to 212 .